Simplifying Expressions
9a + 8 - 2a - 3 - 5a
What is 2a + 5
2(3y - 4) -5(-8 + 4y) = 2(2y - 2)
What is y = 2
Solve for a.
s = n(a + 1)
a = s - n/n
If y varies directly as x, and y = 3 when x = 12, what is the value of y when x = 18?
What is y = 4.5
5 = 7
x - 3 x - 9
What is x = 12
-3(-9 - 4) - 2(v - 2)
What is 25v + 16
-(x + 7) - 2x = 5x - 7
What is x = 0
Solve for x.
1/3(2x - y) = 5
What is x = 15/2 - 1/2y
If x and y vary directly, find the missing value:
(4, y) and (-6, 15)
What is y = -10
5 = x - 10
6 3x + 6
What is x = -10
-3(-5 - 4d) - 2(v - 8d)
What is 13v + 28d
3(2x - 1) = 6(x + 1)
What is No Solution
Solve for a.
c = 8a - 3b
What is a = c + 3b
8
Weight varies directly with gravity. If Buzz Aldrin weighed 360 pounds on earth but only 60 pounds on the moon, what is the weight of a person who weighed 54 pounds on the moon?
What is y = 324
10 = 4
2x + 4 x + 5
What is x = -17
2/3 (3x - 15y) + (9y - 11x)
What is -9x - 21y
14 - 1/5(x - 10) = 2/5(25 + x)
What is x = 10
Solve for a.
w = 7a + 4b
What is a = w - 4b
7
Trina's paycheck earnings vary directly as the number of hours she works. If she works 19 hours and earns $187.15, what should she earn if she worked 40 hours?
What is y = 394
3 = a - 3
2 a + 1
What is a = -9